> One system that may work could be automatic mandatory release unless renewed at a higher level of classification. Every time material is elevated it should require the highest level of administration to approve renewal. Additionally, when things are declassified they should be publicly advertised in some way so that records requests can find them.

Never worked with any TS/SCI huh?

I agree with your base idea, but the devil is in the details here. We do need better policy around classified material, given it's supposed to serve the population. But automatic outcome based on some unconnected rules or judgement, uh... doesn't have a great track record for success. We likely do need more accountability to make sure secrets from society serve that society. But I don't think an edict about expiration dates is that.